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基于小波多分辨分析理论并结合面向控制的辨识思想 ,提出一种多率采样系统分频段加权辨识方法 .首先研究了采样信息的一致性重构问题 ,然后给出一种新颖的分频段加权辨识方法 .此方法的最大特点是对噪声不敏感 ,易实现对感兴趣频段的精确建模 ,便于和控制系统设计相配合 .仿真结果验证了这种方法的可行性
Based on the theory of wavelet multiresolution analysis combined with the idea of control oriented identification, a method of weighted identification of multi-rate sampling sub-band is proposed.Firstly, the problem of consistent reconstruction of sampled information is studied, and then a novel sub-band weighting identification Method.The most prominent feature of this method is that it is insensitive to noise and it is easy to realize the accurate modeling of the frequency band of interest and is easy to be matched with the control system design.The simulation results verify the feasibility of this method